The November 14 earthquake and subsequent aftershocks have led to numerous landslide dams being formed in North Canterbury and Kaikoura rivers and streams. Information on these landslide dams is available here. As a precaution it is strongly advised to keep away from all riverbeds north of the Waiau River in case there are any sudden releases of water.

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Consent application

Purpose

This application seeks resource consent to enable the applicant (the Canterbury Regional Council, otherwise known as Environment Canterbury or ECan) to carry out flood protection works for the protection of Christchurch City, Selwyn and Waimakariri Districts’ residents from the effects of a significant flood in the Waimakariri River. Essentially these works consist of:

The construction of new secondary stopbank on the former south bank of the old Southern Branch of the Waimakariri River

The construction of a secondary stopbank at Halkett

The reconstruction or upgrading of existing sections of the secondary and primary stopbanks which are below the desired design standard

The upgrading of stopbanks on the north bank to accommodate the large (6,500 cumec) flood event including buttressing where required

The construction of a realigned section of the stopbank on the northern (true left) bank of the Waimakariri River

The construction of additional rock lining.

CRC073096 - to dam and divert flood waters from the Waimakariri River, and return the flood waters into the Waimakariri River at the Otukaikino River confluence, in the event of a failure or overtopping of the primary stopbank, between map references NZMS260 M35:5520-4710 to M35:8640-5740.

CRC073097 - to discharge sediment to water, in association with the works and the discharge of contaminants from diverted flood flows in the event of a failure of the primary system.

CRC073098 - to use land and disturb the bed of the Waimakariri River for the purpose of upgrading and extending rock protection works.

The applicant has requested a term of 35 years for all the above applications.

Please note that the following concurrent resource consent applications for stopbank works, as part of the overall Waimakariri Flood Protection Project have also been made to Christchurch City Council, Waimakariri District Council, and Selwyn District Council:

Consent application documents

Further documentation

Due to the very large download size of the applications and AEEs we will not be placing the documentation on our website for viewing and downloading.

For the Environment Canterbury consent applications, please contact our Customer Services Section on (03) 353 9007 or 0800 ECINFO (0800 324 636, for a copy of the CD (including all application details and Section 92s). Hard copies of the Applications and AEEs are available for viewing at our Christchurch Office.

For all other consent applications, please contact the relevant District Council as detailed below: